Source : Webster's Revised Unabridged Dictionary (1913)

Heavenward \Heav"en*ward\, a & adv.
   Toward heaven.

Source : WordNet®

heavenward
     adj : directed toward heaven or the sky; "the soul in its
           heavenward flight" [syn: {skyward}]

heavenward
     adv : toward heaven; "he pointed heavenward" [syn: {heavenwards},
           {heavenwardly}]